Water → 4-[5-(3,5-Dichlorophenyl)-5-trifluoromethyl-4,5-dihydroisoxazol-3-yl]-2-trifluoromethyl benzoic acid methyl ester

HRID 910366Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 910366
[CH3:1][O:2][C:3](=[O:28])[C:4]1[CH:9]=[CH:8][C:7]([C:10]2[CH2:14][C:13]([C:19]3[CH:24]=[C:23]([Cl:25])[CH:22]=[C:21]([Cl:26])[CH:20]=3)([C:15]([F:18])([F:17])[F:16])[O:12][N:11]=2)=[CH:6][C:5]=1I.[F-:29].[K+].COC(=O)[C:34](Cl)([F:36])[F:35].O>CN(C)C=O.[Cu]I>[CH3:1][O:2][C:3](=[O:28])[C:4]1[CH:9]=[CH:8][C:7]([C:10]2[CH2:14][C:13]([C:19]3[CH:24]=[C:23]([Cl:25])[CH:22]=[C:21]([Cl:26])[CH:20]=3)([C:15]([F:18])([F:17])[F:16])[O:12][N:11]=2)=[CH:6][C:5]=1[C:34]([F:36])([F:29])[F:35]

Komponenten

7

Edukt 4

HCID 962WaterHCID 73935Methyl chlorodifluoroacetateHCID 522689Potassium FluorideHCID 667844134-[5-(3,5-Dichlorophenyl)-5-trifluoromethyl-4,5-dihydroisoxazol-3-yl]-2-iodo benzoic acid methyl ester

Produkt 1

HCID 595634864-[5-(3,5-Dichlorophenyl)-5-trifluoromethyl-4,5-dihydroisoxazol-3-yl]-2-trifluoromethyl benzoic acid methyl esterAusbeute 98,7 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)KatalysatorHCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
120 °C

Versuchsvorschrift

In a solution of 0.51 g of 4-[5-(3,5-dichlorophenyl)-5-trifluoromethyl-4,5-dihydroisoxazole-3-yl]-2-iodo benzoic acid methyl ester in 5 ml of N,N-dimethylformamide, 0.18 g of copper (I) iodide, 0.06 g of potassium fluoride and 0.27 g of chlorodifluoro acetic acid methyl ester were added, and stirred at 120° C. for 5 hours. After the completion of the reaction, the reaction mixture was left and cooled to room temperature, 50 ml of water was added and extracted with ethyl acetate (50 ml×2). The organic phase was washed with water, dehydrated with saturated sodium chloride aqueous solution and dried over anhydrous sodium sulfate, and then the solvent was distilled off under reduced pressure. The residue was purified with silica gel column chromatography that was eluated with ethyl acetate-hexane (1:4), and 0.45 g of the aimed product was obtained as pale yellow oily substance.

Aufarbeitung

  1. customAfter the completion of the reaction
  2. waitthe reaction mixture was left
  3. temperaturecooled to room temperature
  4. extractionextracted with ethyl acetate (50 ml×2)
  5. washThe organic phase was washed with water
  6. dry with materialdried over anhydrous sodium sulfate
  7. distillationthe solvent was distilled off under reduced pressure
  8. customThe residue was purified with silica gel column chromatography that

Quellen und Nachweise

ORD-Eintrag
ord-e9b7f7717b184ee1a3101ceda537ef0b
Quelldatensatz
uspto-grants-2011_09
Patentnummer
US08022089B2

Notizen zur Reaktion

Wird geladen…